Keen to prevent his youngest dog from escaping the yard, a man built a tall fence around his Kentucky home to keep her in. But the plan backfired; the dog made light work of the wooden perimeter, and her funny acrobatics have made her a social media sensation. “I built the fence when I moved into my new home because [Lexi] had previously jumped a shorter fence at my old home,” Matt Waldman, 32, who works in finance, told The Epoch Times. “I built a tall one, thinking that would solve the problem. “One day, I came out and she was just hanging on the fence, looking over. My first reaction was just, ‘That’s impressive!’ I then started filming because I thought it was funny.” A little worried that 5-year-old Lexi, whom Matt adopted as a puppy, might make it over the fence, he monitored her closely. But he soon realized she was …